I believe this pic was sent to my by Mike Mancini. It's of a 73 318 and he circled the painted rubber valve cover gasket. I also see paint marks on the EGR valve hoses. Yellow stripe on the short hose from carb to "T". Then white from the "T" to the EGR valve. It looks like light blue on the line that goes from the "T" to the valve on the firewall but the FSM shows it being green.

The plug wires are black on this engine too. I have no idea if they were replaced or if they are supposed to be original.